Current Weather

SunDaylight: 13h 22m

Sunrise05:04

Sunset18:26

Waves

Live

SSE

0.4m

Period: 7s

Swell 1:0.3m@ 5sS

Swell 2:0.2m@ 8sSE

Wind waves:

0.0m@ 1sS

Wind

Cross

12km/h

Gusts: 28 km/h

Tides

-0.07m

00h06h12h18h24h

Tides— Today

	Coef.Coef	▼Low tideLow	▲High tideHigh
MorningAM	24	02:00-0.25m	—
AfternoonPM	24	13:00+0.12m	—

Air

28°C

Feels like: 33°C

Max31°

Min24°

Water

29°C

Wetsuit: Boardshorts

UV IndexMax today: 7.7

5.0Moderate

UV Scale

Wear sunscreen and sunglasses. Seek shade during midday.

Rain ProbabilityMax today: 33%

6%No rain

Perfect conditions to be outside.

Forecast

	Today			Tomorrow			21 Fri			22 Sat			23 Sun			24 Mon			25 Tue			26 Wed
Period	AM	PM	EVE	AM	PM	EVE	AM	PM	EVE	AM	PM	EVE	AM	PM	EVE	AM	PM	EVE	AM	PM	EVE	AM	PM	EVE
Rating	2		1			2		!	!			4	4		1	5		!	!	!	!	!	!	!
Height(m)	0.4 SSE 162°	0.4 SSE 162°	0.4 SSE 162°	0.4 SSE 166°	0.4 SSE 167°	0.4 SSE 168°	0.5 S 177°	0.6 S 183°	0.7 S 185°	0.5 S 181°	0.5 S 179°	0.5 S 177°	0.5 S 175°	0.4 S 171°	0.5 SSE 167°	0.8 SSE 158°	1.1 SSE 158°	1.3 SSE 160°	1.3 SSE 166°	1.4 S 173°	1.4 S 179°	1.3 S 186°	1.5 SSW 193°	1.5 SSW 195°
Period(s)	7	7	7	7	7	7	8	6	6	8	8	8	8	8	9	14	14	14	12	11	10	10	9	8
Energy(kJ)	13	13	13	13	14	16	22	22	25	29	30	27	25	26	36	261	465	565	480	398	350	316	303	296
Wind(km/h)	3 ↑11 N	10 ↑25 S	8 ↑12 S	6 ↑14 SSW	11 ↑26 S	10 ↑14 S	12 ↑21 SSW	12 ↑39 S	13 ↑31 SSW	9 ↑17 SW	6 ↑18 SSW	2 ↑6 NNW	5 ↑17 NE	7 ↑23 SSW	5 ↑21 S	5 ↑20 NE	11 ↑31 SSW	13 ↑30 SSW	11 ↑29 SSW	20 ↑47 S	19 ↑49 SSW	17 ↑42 SW	20 ↑49 SW	18 ↑51 SW
Wind state	offshore	cross-on	cross-on	cross-on	cross-on	cross-on	onshore	cross-on	cross-on	onshore	cross-on	cross-off	offshore	cross-on	cross-on	cross-off	cross-on	cross-on	onshore	cross-on	cross-on	onshore	onshore	onshore
Swell 1	0.3m5s SSE	0.3m5s S	0.3m5s SSE	0.3m5s SSE	0.3m5s SSE	0.2m7s SSE	0.4m7s S	0.4m7s S	0.4m4s S	0.5m7s S	0.4m7s S	0.4m6s S	0.4m6s S	0.3m8s S	0.3m8s SSE	0.8m12s SSE	1.0m12s SSE	1.1m11s SSE	1.0m10s SSE	1.1m10s SSE	1.0m9s S	1.0m10s S	0.8m10s SSW	0.9m10s SSW
Swell 2	0.2m8s SSE	0.2m8s SE	0.2m10s SSE	0.1m8s S	0.2m8s S	0.2m7s S	0.1m5s SE	0.2m6s S	0.3m6s S	0.2m6s ENE	0.2m6s NE	0.2m7s N	0.2m6s ESE	0.2m7s SSE	0.2m11s SSE	0.2m7s SSW	0.3m14s S	0.5m15s S	0.7m12s SSE	0.5m14s S	0.7m12s S	0.4m12s SSW	0.6m10s SSW	0.7m8s S
Tides	▲ High0.3m	▲ High0.2m	▲ High0.6m	▲ High0.2m	▲ High0.3m	▲ High0.6m	▲ High0.1m	▲ High0.4m	▲ High0.6m	▲ High0.0m	▲ High0.5m	▲ High0.6m	▼ Low0.1m	▲ High0.5m	▲ High0.5m	▼ Low0.2m	▲ High0.5m	▲ High0.4m	▼ Low0.3m	▲ High0.5m	▲ High0.4m	▼ Low0.3m	▲ High0.5m	▲ High0.4m
Cloud cover
Rain(mm)	-	-	-	-	-	-	-	-	-	-					-			-	-	-	-	-	-	-
Air	27°C	29°C	27°C	27°C	28°C	26°C	27°C	28°C	27°C	28°C	28°C	26°C	27°C	29°C	27°C	26°C	28°C	27°C	28°C	29°C	28°C	29°C	31°C	29°C
Water	28°C	29°C	28°C	28°C	29°C	29°C	28°C	29°C	28°C	28°C	29°C	29°C	28°C	29°C	29°C	28°C	29°C	29°C	29°C	29°C	29°C	29°C	29°C	29°C
UV Index	7	8	1	7	7	0	7	7	0	7	7	0	4	7	1	7	7	1	7	8	1	6	5	0

Map

Windy

Reviews

2.0

Be the first to review Rock Island! Login to leave a review.

Located in Kanagawa and Chiba, Rock Island is an exposed reef break known for its consistent waves. The left-hand break works well at all tide levels, though it can get crowded. Ideal conditions include south swells and north-northeast winds, with water temperatures requiring a wetsuit. Surfers should be cautious of submerged rocks and other hazards.

Nearby spots

zushi Marina1.0 km

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